| 288-88-0 | 1,2,4-Triazole | C2H3N3 |
| 288-05-1 | Selenophene | C4H4 Se |
| 288-16-4 | Isothiazole | C3H3NS |
| 288-90-4 | 1,2,4-Oxadiazole | C2H2 N2 O |
| 288-35-7 | 2H-1,2,3-Triazole | C2H3 N3 |
| 288-06-2 | 1-Silacyclopentane | C4H10Si |
| 288-07-3 | 1H-Stannole | C4H6Sn |
| 288-11-9 | PyrazolenineSee | C3H4N2 |
| 288-12-0 | 3H-Pyrazole | C3H4N2 |
| 288-20-0 | 1,2-Oxaphosphole | C3H3OP |
| 288-26-6 | 3H-1,2-Dithiole | C3H4 S2 |
| 288-30-2 | 4H-Imidazole | C3H4N2 |
| 288-31-3 | 2H-Imidazole | C3H4N2 |
| 288-37-9 | 1,2,5-Oxadiazole | C2H2 N2 O |
| 288-39-1 | 1,2,5-Thiadiazoles | C2H2 N2 S |
| 288-43-7 | 1,2,3-Oxadiazole | C2H2N2O |
| 288-48-2 | thiadiazole | C2H2 N2 S |
| 288-52-8 | Selenazole | C3H3 N Se |
| 288-53-9 | 1,3-Dioxole | C3H4 O2 |
| 288-64-2 | 1,3-Dioxa-2-silacyclopentane | C2H6 O2 Si |
| 288-74-4 | 1,3-Dithiole | C3H4S2 |
| 288-92-6 | 1,2,4-Thiadiazole | C2H2 N2 S |
| 288-93-7 | 1,2,4-Selenadiazole | C2H2N2Se |